[Bug debug/44832] [4.6 Regression] -fcompare-debug failure for C++ i386.c

["amylaar at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #14 from amylaar at gcc dot gnu dot org  2010-07-07 13:22 -------
(In reply to comment #12)
$ diff -u -I '^  # DEBUG.*$' t.c.025t.* t.c.gk.025t.*
--- t.c.025t.einline2   2010-07-07 13:59:11.251978485 +0100
+++ t.c.gk.025t.einline2        2010-07-07 13:59:11.451101846 +0100
@@ -149,14 +161,14 @@
   int i;
   int n;
   struct rtx_def * ops[32];
+  unsigned char D.1889;
   unsigned char D.1888;
-  unsigned char D.1887;
+  int D.1887;
   int D.1886;
-  int D.1885;
   int ix86_isa_flags.6;
-  struct rtx_def * D.1883;
-  struct rtvec_def * D.1882;
-  const unsigned char D.1881;
+  struct rtx_def * D.1884;
+  struct rtvec_def * D.1883;
+  const unsigned char D.1882;
   int mode.5;
   struct rtvec_def * * D.1872;
   int D.1817;
@@ -329,22 +365,26 @@

 <L27>:
   mode.5_58 = (int) mode_12;
-  D.1881_59 = mode_nunits[mode.5_58];
-  n_60 = (int) D.1881_59;
+  D.1882_59 = mode_nunits[mode.5_58];
+  n_60 = (int) D.1882_59;
+  # DEBUG n => n_60
   ix86_expand_vector_init_concat (mode_12, target_10(D), &ops[0], n_60);
   goto <bb 32>;

 half:
   mode.5_61 = (int) mode_12;
-  D.1881_62 = mode_nunits[mode.5_61];
-  n_63 = (int) D.1881_62;
+  D.1882_62 = mode_nunits[mode.5_61];
+  n_63 = (int) D.1882_62;
+  # DEBUG n => n_63
+  # DEBUG i => 0
   goto <bb 26>;

 <bb 25>:
-  D.1882_64 = *D.1872_50;
-  D.1883_66 = D.1882_64->elem[i_65];
-  ops[i_65] = D.1883_66;
+  D.1883_64 = *D.1872_50;
+  D.1884_66 = D.1883_64->elem[i_65];
+  ops[i_65] = D.1884_66;
   i_67 = i_65 + 1;
+  # DEBUG i => i_67

 <bb 26>:
   # i_65 = PHI <0(24), i_67(25)>
@@ -359,25 +401,26 @@

 <L29>:
   ix86_isa_flags.6_68 = ix86_isa_flags;
-  D.1885_69 = ix86_isa_flags.6_68 & 524288;
-  if (D.1885_69 == 0)
+  D.1886_69 = ix86_isa_flags.6_68 & 524288;
+  if (D.1886_69 == 0)
     goto <bb 30> (<L31>);
   else
     goto <bb 29> (<L30>);

 <L30>:
   ix86_isa_flags.6_70 = ix86_isa_flags;
-  D.1886_71 = ix86_isa_flags.6_70 & 131072;
-  if (D.1886_71 == 0)
+  D.1887_71 = ix86_isa_flags.6_70 & 131072;
+  if (D.1887_71 == 0)
     goto <bb 30> (<L31>);
   else
     goto <bb 32>;

 <L31>:
   mode.5_72 = (int) mode_12;
-  D.1887_73 = mode_size[mode.5_72];
-  D.1888_74 = D.1887_73 / 4;
-  if (D.1888_74 == 4)
+  D.1888_73 = mode_size[mode.5_72];
+  D.1889_74 = D.1888_73 / 4;
+  # DEBUG n_words => (int) D.1889_74
+  if (D.1889_74 == 4)
     goto <bb 31>;
   else
     goto <bb 32>;


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44832